12287005 has 16 divisors (see below), whose sum is σ = 16118784. Its totient is φ = 8951040.

The previous prime is 12286999. The next prime is 12287017. The reversal of 12287005 is 50078221.

12287005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12287005 - 2⁹ = 12286493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304 + ... + 4966.

It is an arithmetic number, because the mean of its divisors is an integer number (1007424).

Almost surely, 2^12287005 is an apocalyptic number.

It is an amenable number.

12287005 is a deficient number, since it is larger than the sum of its proper divisors (3831779).

12287005 is a wasteful number, since it uses less digits than its factorization.

12287005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4716.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 12287005 is about 3505.2824422577. The cubic root of 12287005 is about 230.7537026161.

The spelling of 12287005 in words is "twelve million, two hundred eighty-seven thousand, five".